Hot-dip Zinc Coating Steel Sheets in Coils of Prime Quality and Best Price

Hot-dip Zinc Coating Steel Sheets in Coils of Prime Quality and Best Price System 1

Hot-dip Zinc Coating Steel Sheets in Coils of Prime Quality and Best Price

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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1.Structure of Hot-Dip Galvanized Steel Sheet Description：

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

Hot-dip Zinc Coating Steel Sheets in Coils of Prime Quality and Best Price

4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Processability	Yield strength	Tensile strength	Elongation %	180°cold-bending
Common PV	-	270-500	-	d=0,intact,no zinc removal
Mechanical interlocking JY	-	270-500	-	d=0,intact,no zinc removal
Structure JG	>=240	>=370	>=18	d=0,intact,no zinc removal
Deep drawn SC	-	270-380	>=30	d=0,intact,no zinc removal
EDDQ SC	-	270-380	>=30	d=0,intact,no zinc removal

5.FAQ of Hot-Dip Galvanized Steel Sheet

We have organized several common questions for our clients，may help you sincerely：

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

3. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.

Q: What are the different methods of testing steel coils for quality control?: Steel coils undergo various methods for quality control testing to ensure they meet the necessary specifications and standards. These methods encompass visual inspection, dimensional measurement, hardness testing, tensile strength testing, chemical analysis, coating thickness measurement, surface roughness measurement, ultrasonic testing, and magnetic particle inspection. Visual inspection is the most fundamental technique, involving a thorough examination of the coils for surface defects like scratches, dents, or irregularities. This method enables the identification of visible defects in the material. Dimensional measurement, on the other hand, utilizes tools such as calipers, micrometers, or laser measuring devices to evaluate the dimensions of the steel coils. The measurements are compared against specified tolerances to ensure they meet the required standards. To assess the resistance of the steel coils to indentation or penetration, hardness testing is performed. This examination helps evaluate the material's strength and durability. Common hardness testing methods include Rockwell, Brinell, and Vickers hardness tests. Tensile strength testing measures the maximum tensile stress a steel coil can endure before breaking or deforming. This test helps determine the material's strength, elasticity, and compliance with the required specifications. Chemical analysis is crucial in testing the composition of the steel coils to verify the presence of specific elements in the desired amounts. This ensures that the coils are made from the correct grade of steel and comply with the required chemical composition standards. In cases where the steel coils have a protective coating, it is vital to measure the thickness of the coating. Non-destructive testing methods like magnetic induction or eddy current testing are typically employed for this purpose. The coating thickness is compared against the specified requirements to ensure it provides adequate protection. Surface roughness testing evaluates the smoothness or roughness of the steel coil's surface using instruments like profilometers or roughness testers. This testing method guarantees that the coils meet the required surface finish standards. Ultrasonic testing utilizes high-frequency sound waves to detect internal defects like cracks, voids, or inclusions within the steel coils. This non-destructive testing method provides valuable information about the structural integrity of the coil. Magnetic particle inspection is employed to identify surface and near-surface defects in steel coils. By applying magnetic particles to the surface and detecting any magnetic leakage caused by defects using magnetic sensors, this technique effectively detects cracks and other surface abnormalities. By combining these testing methods, manufacturers ensure that the steel coils produced meet the necessary quality standards and are suitable for their intended applications.

Q: Are steel buildings more durable than concrete building?: Yes of course they look nice and I think they are more durable and weather resistant than conventional concrete buildings. So if you are thinking of constructing a building then opt for steel buildings buddy :)

Q: What are the common international standards for steel coils?: The common international standards for steel coils include ASTM A653/A653M, JIS G3302, EN 10346, and GB/T 2518. These standards specify the requirements for the chemical composition, mechanical properties, and dimensions of steel coils used in various industries.

Q: How are steel coils inspected for oil or rust residues using chemical analysis?: Steel coils can be inspected for oil or rust residues using chemical analysis by first collecting samples from various parts of the coil. These samples are then analyzed using appropriate chemical techniques such as solvent extraction or acid digestion to extract any oil or rust residues present. The extracted substances can be further analyzed using methods like Fourier transform infrared spectroscopy (FTIR) or atomic absorption spectroscopy (AAS) to identify and quantify the specific contaminants. This chemical analysis allows for a thorough inspection of steel coils and helps ensure their quality and suitability for various applications.

Q: How are steel coils loaded onto trucks or containers?: Steel coils are typically loaded onto trucks or containers using specialized equipment such as coil lifters or coil hooks. These devices safely secure the coils and allow them to be lifted and positioned onto the truck or container. The coils are then secured in place using straps or other restraints to prevent them from shifting during transportation.

Q: What are the common methods of cutting steel coils?: The common methods of cutting steel coils include shearing, slitting, and laser cutting. Shearing involves using a machine with two blades to cut through the coil. Slitting involves passing the coil through a set of rotating circular blades to create narrower strips. Laser cutting uses a high-powered laser beam to cut through the steel coil with precision.

Q: a picture of the atomic structure of carbon steel: This is actually a quite complex question... The atomic arrangement in steels can be controlled over a pretty wide range of different structures. This is really the fundamental reason why steel is such a commonly used material. The different atomic structures produce different physical properties so metallurgists have developed many different processes to control the atomic structure to get the properties they want. One simple answer is that Fe is BCC, body centered cubic at room temperature at equilibrium conditions. When you heat Fe up, it transforms to FCC, face centered cubic. If you continue heating Fe, it goes back to BCC, then it melts. The addition of C makes these structures (and the transformation temperatures) different. Deviating from equilibrium conditions by, for example, cooling very quickly (quenching) creates different atomic structures (one of the most important is known as martensite). Depending on how much C is in the steel, you can also have two different atomic structures (two different phases) present in equilibirum, for example, pearlite which is a mix of alpha Fe (BCC) and iron carbide Fe3C (orthorombic crystal structure). So... you need to think a little more about exactly what you want a picture of. I hope this helps

Q: What is the average width tolerance for steel coils?: The average width tolerance for steel coils can vary depending on the specific industry and application. However, in general, the standard width tolerance for steel coils is typically around ±0.005 to ±0.020 inches.

Q: What are the different types of steel coil storage methods?: There are several types of steel coil storage methods, including stacking coils vertically, using coil cradles or saddles, utilizing coil racks or frames, employing coil lifters or C-hooks, and implementing automated coil storage systems. Each method is designed to accommodate different storage requirements and ensure the safety and efficient handling of steel coils.

Q: I completed the missions in broken steel like: the one of the rangers, the one of vault 101, the one of the enclave, and several others.are there any more INTERESTING missions?: I purely have been given it, and that i had carried out all the missions. i all started at a save element interior the midst of the sport so i ought to nonetheless redo some tiers and it pops up and tells you that the point cap has been raised. you nonetheless can do all the outdated missions no prob. in spite of in case you all started a sparkling character and went with the aid of them lower back you would be waiting to get to point 30 and then proceed on after the unique ending.

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